Can you help me please!

Answer:

C) x²-2x-15=0

Step-by-step explanation:

You could put both -3 and 5 in the equations to guess and check, but the better way is to use them to create the factors.  If -3 is a root, one of the factors must be (x+3).  If 5 is a root, the other factor must be (x-5).  

(x+3)(x-5)

x²-5x+3x-15=0

x²-2x-15=0

Step-by-step explanation:

x2+2x_15:1234589098988888

Answer:

5 1/4

Step-by-step explanation:

If each canvas takes up 4 oz of paint then you should take 21 and divide it by 4 to get the answer. Erven can only paint 5 full canvases and 1/4 of another canvas.

Note that [tex]\displaystyle \Big (\frac{9}{4} \Big )^{1/2}[/tex] is the same as [tex]\sqrt{\frac{9}{4}}=\frac{\sqrt{9}}{\sqrt{4}}=\frac{3}{2}[/tex].

Hope this helps.

Answer:

Written in slope-intercept form.

y = mx + b

The answer to your question would be

m = 8

Answer:

84

Step-by-step explanation:

108 / (7+2) = 12

7 x 12 = 84

Answer:

84

Step-by-step explanation:

I'm pretty sure correct me if I'm wrong

Answer:

The one the left Will most likely land on 5,6, and 1 and less likely to land on 2,3,and 4 and the one on the right you are more likely to land on all equally

Step-by-step explanation:

Standard: 784,000

Word: seven hundred eighty-four thousand

Expanded: (700,000) + (80,000) + (4,000)

Answer: I think the greatest common factor is 4x^2

Step-by-step explanation:

Find the numerical common factors. Which are 8, -12, and 20. Find the variable common factors for x^4, x^3, and x^2. Multiply them together. Then break down the factors on both sides and pick the biggest one. Finally multiply them together. (I’m sorry, I’m very bad at explaining things.)

Answer:

5.16

Step-by-step explanation:

We multiply the number of weeks by the number of days to find the total amount of days that she ran:

5 weeks × 3 days/week = 15 days

We are looking for the amount of miles/day (which represents the number of miles per day).

So, we take [tex]\frac{77.4miles}{15days}[/tex]= 5.16 miles/day

Answer:

31.5

Step-by-step explanation:

Answer:

a= 14^2 or 196

b= 48^2 or 2304

c= 50^2 or 2500

Step-by-step explanation:

Answer:

hope it may help you

Step-by-step explanation:

one number = 661

second number = 205

Answer:\

1) 5x ( 2x + y)

2) 3y(5x+ y)

3) 7y(2x^2y +1)

I hope im right!!

Answer:

Christian has more candy bar left because 1/8 is less than 1/3.

Step-by-step explanation:

Answer:

Ellie has more. Ellie has 5/24 more.

Step-by-step explanation:

Common Denominator: 24

1/8=3/24 and 1/3=8/24

Then subtract to get 5/24

Answer:

See answers below

Step-by-step explanation:

Given that sin theta = √3/√7

Opposite =√3

Hypotenuse = √7

Get the adjacent

Adj² = (√7)²-(√3)²

Adj² = 7-3

Adj² = 4

Adj = √4

Adj = 2

Cos theta = adj/hyp = 2/√7

csc theta= 1/sin theta = 1/(√3/√7) =

√7/√3

sec theta= 1/costheta = 1/(2/√7) = √7/2

tan theta= opp./adj = √3/2

cot theta =1/tan theta = 1/(√3/2) = 2/√3

= 2√3/3

Answer:

Step-by-step explanation:

Scale factor is the ratio of the corresponding sides:

Find m using the scale factor:

Answer:

scale factor is 4 and m is 16.

Step-by-step explanation:

This is because these are similar rectangles, so the proportion of each side to the congruent side is the same. This means that to get from 7 to 28 u multiply by a scale factor of 4, and to get m you would multiply 4 by 4.

Answer:

7/20

Step-by-step explanation:

I think

35%=35/100

35 divided by 5 is 7

100 divided by 5 is 20

7/20

Answer:

if you're looking for the cost per pound its 1.3 because 20 divided by 14.99 is 1.3 :)

Answer:

2

Step-by-step explanation:

Answer:

2

hope it helps.......,

Answer:

35cm²

Step-by-step explanation:

w × l = area

7 × 5 = 35

good luck, i hope this helps :)

Answer:

hiiii :)

Step-by-step explanation:

Answer:

the answer is 5500 but if not put 6000$

Step-by-step explanation:

5/8 x 3/11 = answer

Keep change flip

Answer:

5/24

Step-by-step explanation:

Answer:

Disect the shape

Step-by-step explanation:

6 x 10 x 18 ÷ 2 = (Answer)

Answer:  Like terms are combined together in algebraic expression so that the result of the expression can be calculated with ease. For example, 7xy + 6y + 6xy is an algebraic equation who's like terms are 7xy and 6xy. Therefore, this expression can be simplified by combining like terms as 7xy + 6xy + 6y = 13xy + y.

Step-by-step explanation:

Answer:

If in a equation there are numbers that have the same letters you can just add them or subtract them depending on the signs.

Step-by-step explanation:

For example this equation:

2x + 7b - 7x + 9b + 1a - 22a

So you just put them in different categories(Remember to bring them with the sign that's in front of each number) after that you just add or subtract them

category x(only numbers that have x's go here):     +2x-7x  = -5x

category b (only numbers that have b's go here):    +7b+9b = +16b

category a (only numbers that have a go here):       +1s-22b = -21a

now just put them in the same equation:

-5x+16-21a

and done!^^

Hope this example helped~

Answer:

y=-4

Step-by-step explanation: